currently, there is no problem with exporting excel files that save text. but now the excel that needs to be exported contains pictures, so please kneel down here and beg for your help! ...
the developer tools under chrome have performance functions, as well as IE11. Recently to do a 2B project, there is a requirement for IE8 compatibility, but the performance is not up to standard, and there is no useful analysis tool. Do not know if ther...
I use JS to write a full-screen scrolling demo, in which the transitionend that executes the scroll-up function will trigger the transitionend of the scroll-down function. the details are as follows: if the mouse rolls down, modify the top of a DOM e...
question: is there any good way to prevent the parameters in the url from being cut when the median value of the address bar key pair is the new url? ...
help others write a simple mini application, third-party services used in the background, and know that cloud needs to bring a request header to request data when using third-party services. Everything is normal in the development environment . run bu...
as shown in the figure below, I wrote the angular code in vscode . I declared a bunch of interfaces. How can I make these interfaces implemented automatically? (the currently installed plug-ins are: Angular 7 Snippets ) ...
if you click to upload a folder, you can add webkitdirectory attribute to input, but drag and drop the upload folder, I can t find a satisfactory answer all over the network. The closest answer is to get the data. Here is demo: https: wicg.github.i...
currently has all the data for this table in order to print out such a table with data. is there any way to implement it it is known that it can be implemented with canvas, but it feels troublesome ...
I m going to do the function shown in the figure, but it s a screenshot of app, but I m going to make it into a mobile web version. step 1 to step 2 I want to directly use upload files to select local files. this way, it is easy to get the na...
the demand is like this there is an agent list. If there is an agent on the menu, you need to be prompted by the red dot in the agent list. After the red dot is processed, the red dot disappears app is the page layout.html <nz-layout class=&q...
for example, I have a two-level menu user:{ child:[ {detail}, {update} ] } order:{ child:[ {add}, {delete} ] } I want to mix all the child routes under all user routes with a mounted; cannot affect o...
Cannot jump to reference under vscode mac such as import { func } from . module.js command + Click module.js cannot jump to module.js has been invalid only since the last update. in addition, there is no smart prompt for writing import. For e...
I have two component:User,Admin. Now, after I call const user= < User >, how can I tell whether user is an instance of User or Admin ...
document.getElementsByClassName("current")[0].onclick = function () { 1 alert("abv"); for(var i = 0; i< listShow; iPP ) { document.getElementsByClassName("sojob-item-ma...
as shown in the figure, the background is a dates array with n objects, and this is one of them. Now I want to pass a value to the starTime attribute at the front end, and pass multiple values to dates [0] .starTime, dates [1]. StarTime.dates [n] .starT...
problem description I recently used TypeScript in my project and found that I need to write a lot of type declarations. If a variable is passed between several files, the type should be declared everywhere, and a large number of type declarations lead...
I want to press the up and down keys to achieve the selection function, but if the selected element reaches the bottom of the visual area, pressing the key again requires the page to scroll down, but how to judge the distance between the top or botto...
I dynamically generated a few points, click on the text box, and then click inside the processing alarm to appear a large pop-up window, how to achieve this pop-up window. ${data_info[i].carArea}< span> < div> < di...
1. Detailed description of the original problem everything in Android is normal, pc chrome simulator is normal, WeChat end on iphone, chrome safari is not working, websocket is not connected, wsurl is normal, onerror event is triggered directly after...
problem description remote server system: CentOS 7.264-bit npm i puppeteer installation failed to run, solve. ...
problem description now there is such a requirement: there is a software, there are several versions of this software, and there is little difference between these versions. that is, most of the code in these versions is the same, and a small part o...
$( "- sharpaddFrom "). Validform ({) datatype:{ "zh2-4": ^[ u4E00- u9FA5 uf900- ufa2d]{2,4}$ , "ajaxCode": function(){ $.ajax({ url:...
How do I get back to the drive letter operation if the command fails? ...
Under Xcode9.3, what is the difference between block body self- > and direct self call? Why does Apple officially recommend using self-? what is the principle? -(MJRefreshNormalHeader *) refreshHeader { if (!_refreshHeader) { _refreshHeader = [MJR...
the library used is puppeteer,. As soon as you cannot access url, you will get stuck in infinite callback waiting. How to solve this problem const puppeteer = require( puppeteer-core ); async function test() { const browser = await puppeteer.lau...